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A plate carries a charge of -4.0 µC, while a rod carries a charge of +1.0 µC. How many electrons must be transferred from the plate to the rod, so that both objects have the same charge?
electrons
A wheel 65 cm in diameter accelerates uniformly from 215 rpm to 390 rpm in 6.0 s. How far will a point on the edge of the wheel have traveled in this time.
A 50 kg diver steps off a 10 m high platform and strikes the water below in 1.43 seconds. determine the average frictional force that stopped his motion while in the water
The two blocks attached by a massless rope that is strung over a frictionless and massless pulley. derive the tension in the rope
A person lifts a 3.0 kg cement block a vertical distance of 1.24 m and then carries the block horizontally a distance of 11.90 m. How much work is done by the person in the process
A proton moves at 4.9x106 m/s in a magnetic field where B = 0.42 T. what force does the proton experience
Consider a 10-kg block resting on a frictionless plane inclined 30 o connected by a rope through a pulley to a 10-kg block hanging free. What is the direction and magnitude of the resulting acceleration of the 2-block system?
A jeweler working with a heated 47 g gold ring should lower the ring's temperature to make it safe to handle. If the ring is initially at 99 degrees Celcius, what mass of water at 25 degrees Celcuis is needed to lower the ring's temperature to 38 ..
A uniform thin rod of length 0.778 m is hung from a horizontal nail passing through a small hole in the rod located 0.043 m from the rod\'s end
A tuning fork vibrating at 515 Hz falls from rest and accelerates at 9.80 m/s2. How far below the point of release is the tuning fork when waves with a frequency of 484 Hz reach the release point? Take the speed of sound in air to be 340 m/s.
The maximum speed of a 2.6-kg mass attached to a spring is 0.74 m/s, and the maximum force exerted on the mass is 11 N. What is the force constant of the spring
A uniform electric field of about 100 V/m pointing straight down, exists just above Earth's surface. what uniform surface charge density would be required
A car accelerates uniformly from rest and covers a distance of 71 m in 5.6 s. If the diameter of a tire is 42 cm, Find total number of rotations of the wheel
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